The World Health Organisation raises the alarm over a rapid jump in fatalities as Cuba become the largest contributor of doctors to Ebola crisis

Almost 2,500 people have now been killed in the deadliest ever outbreak of Ebola, the UN has said as Cuba becomes the largest contributor of foreign doctors to the west African pandemic.

The virus has continued to spread in Liberia, Guinea and Sierra Leone, claiming hundreds more lives in the last few weeks despite attempts to limit contamination, the World Health Organisation (WHO) said.